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Lobaugh gearbox maintenance

S swrrOGR Forum Member

B8E5B29A-48B2-4F5F-A477-4AAA0E776F1BAEF7FC93-B8BD-4B87-B993-769424E8FAF26CC1700F-40F8-47CC-9456-9CD3EB89CFD8Right now there is no binding to the gearbox as it sits but am interested in adding new grease.  I have heard that these gearboxes are strong but can be problematic to reassemble although it looks simple.  Before I start mucking about I just wanted to hear from others about their experience in maintaining these gearboxes.  It could be that I can just remove one of the top screws and squirt grease in the worm housing?  This maybe ‘if ain’t broke don’t fix situation.’  

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B bob2OGR Forum Member

These things are by definition 70 years old.  Time to open it up, clean, and re-grease.

cut the old rubber tube off.  Remove the cylinder block.  Rotate the gear box until you get access to the two very short screws under the worm shaft.  They release the worm and housing.  Then take those top screws out for access to the ball bearings.

clean, lube, and re-assemble.  Use Toyota #0 hose.

Note that these are good gearboxes, but they can be assembled without proper gear mesh.  Use care to get that worm housing all the way down against the gear housing before tightening the last two screws.

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